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38186240008 = 237681897143
BaseRepresentation
bin100011100100000100…
…111100100000001000
310122120021010222112111
4203210010330200020
51111201134140013
625313103352104
72521201453540
oct434404744010
9118507128474
1038186240008
1115216156344
1274985b2634
1337a73853b7
141bc3752320
15ed766173d
hex8e413c808

38186240008 has 16 divisors (see below), whose sum is σ = 81827657280. Its totient is φ = 16365531408.

The previous prime is 38186239979. The next prime is 38186240011. The reversal of 38186240008 is 80004268183.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340948516 + ... + 340948627.

It is an arithmetic number, because the mean of its divisors is an integer number (5114228580).

Almost surely, 238186240008 is an apocalyptic number.

It is an amenable number.

38186240008 is an abundant number, since it is smaller than the sum of its proper divisors (43641417272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38186240008 is a wasteful number, since it uses less digits than its factorization.

38186240008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681897156 (or 681897152 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 38186240008 in words is "thirty-eight billion, one hundred eighty-six million, two hundred forty thousand, eight".

Divisors: 1 2 4 7 8 14 28 56 681897143 1363794286 2727588572 4773280001 5455177144 9546560002 19093120004 38186240008